Oil-burning apparatus



Aprii 7, 1925. 1,532,733

' F. A. DAECHSEL OIL BURNING APPARATUS Filed 00+; 18-, 1923 2 Sheets-finest I '0 w a INVENTIJR mz-ns'nlzzaw. M20951 ATTORNEY April 7, 1925. 15535333 A. DAECHSEL OIL BURNING APPARATUS ATTCIRNEV Patented Apr. '7, 1925.

FREDERICK A. DAECHSEL, F OTTAWA, ONTARIO. CANADA.

OIL-BURNING arrnnacros.

Application filed October 18, 1923. Serial No. 66935;).

To all 10/10/71, if. 11mg concern:

Be it known that l. Fmcnicuu'n A. DAEC-ll' em, a citizen of the Dominion of Canada, and resident of Ottawa. in the county of Carleton and Province of Ontario, Dominion of Canada, have invented certain new and useful improvements in Oil-Burning Apparatus, of which the following is a specification.

This invention has relation to certain new and useful improvements in an oil burning apparatus and has for its primary object the provision of an apparatus which will be of simple and improved construction and 6 operation andarranged with a double burner and automatic cut off means operable automatically in case of cutting cit of the air supply, soi'as to cut oil the supply of oil and thereby discontinue operation of the complete apparatus.

The invention has for another object the provision of an oil burning apparatus of the character stated which will be con strueted in such a manner that the burner nozzle extends through the water chamber within the casing of the stove or furnace to which the apparatus is applied and discharges on one face of the water chamber, means being. carried on the water chamber 39 for deflecting the flame and assuring a thorough heating of the contents of the water chamber during operation of the oil burning apparatus.

'A. further object of the invention resides in the provision of an oil burning apparatus ofthe character set forth including an air sup-plv pipe extended from a fan casing having enclosed therein the blower fan, the air supply pipe being forked and having air Qv conducting extension pipes projecting from the branches thereof and extending into the stove or furnace for connection with the "burner nozzles of the apparatus suitable ivalves. being employed for controlling the 15 passage of the air into the several air con- -ductingpipes, the fuel oil being delivered :to the air conducting pipes at a point exteriorly of the stove or furnace, so that the fuel oil will be vaporized as it is carried into the burner nozzles with the air passing through the air conducting, pipes and into thefiburner-nozzles.

. T e in en ion has for a still iurther object theprovision of an oil burner apparatus of the character set forth including a mechauieally operated"automatic cut oil'l'or the fuel oil supplyand which is operated whenever operation of the blower fan is discontinued. vVith' the foregoing and I 'icr objects in view will appear iis the description pro- 6 ceeds; the invention consists in the novel construction, combination and arrangement of co-opera-ting elements as hereinafter more specifically setQforth, claimed and shown in the accompanying drawings forming a part 5 of the present application, in which:

Fig. 1 is a plan view of the apparatus showing the same applied to the furnace or stove, of conventional form. parts being broken away on thls View for the sake of clearness.

Fig. 2 is a side elevation of the apparatus as shown in Fig. 1.

Fig. 3 is a fragmentary detail elevation, showing the automatic cut off in its ope-rated 1 position.

Fig. 4 is atransverse vertical section sub-. stantially on the plane of line 4.& of Fig.

1, looking in the direction indicated by the arrows. Fig. 5 is a'fragmcntary detail elevation showing a modified form of valve which may be employed in the air conducting pipes.

Fig. 6 is a detail section substantially on the plane of line 66 'of Fig. 5, looking in the direction indicated by the arrows.

Referring more in detail to the drawings in which similar reference characters designate corresponding parts throughout the several views, it will be noted'that the apparatus includes a blower fan 10 ene'losed in a blower t'an casing 11 and operable by an electric motor 12. as shown in the drawings, or by other suitable n ans. 'lhe electric. motor 19. is connected with a. suitable source of electric energy 13, by the current coni'lucting wires 14: and an appropriate control swing '15 is located in the path of the current conducting wires 14. This may be readily understood by referring to Fig. 1 of the drawings.

The air discharge pipe 16 from the fan casing 11 is forked into diverging branches 17, to the ends of which are connected. the 9 air conducting pipes 18, which are otsmaller diameter than the air discharge pipe 16 and its branches 17 as shown clearly in Figs. 1,

2 and 3. The air conducting pipes 18 are preferably positioned parallel to one another and threaded into the ends of the branches 17, as shown in the drawings. It

. will also be seen from Figs. 1 and 2 that the air conducting pipes 18 are extended through the Wall 19 of a furnace or stove to which. the apparatus isapplied. After entering-the' furnace or stove casing, the air conducting pipes 18 are threaded to or otherwise connected with the burner nozzles 20 which extend through a water chamber 21 located in the furnace or'stove, as shown in igs. 1 and 2 and having connected therewith the watersupply pipe 22 and the Water discharge pipe 23. The burner nozzles 20 extend through a portion of the water cham-' ber 21 from the side of the latter where they connect with the'air conducting pipes 18 and each burner nozzle 20 ha a curved discharge end opening ontowoi face of'the water chamber 21, preferably the upper face thereof, as shown clearly in Fig.2. Flame deflecting and heat retaining members 24 are extended over the discharge ends of the humor nozzles 20 and spaced from the same, the ends of the flame deflecting and heat retaining members 24 being supported on the heat retaining members 25 extended at right i V angles to the flame deflecting and heat retaining members 24 and 'c'esses or seats 26 in the upper face resting in the re-- provided for this purpose of the water chamber 21. it will be seen that by providing the flame deflecting. and heat retaining members 25, athorough and rapid heating of the contents of the water chamber 21 will be as sured. A liquid fuel supply pipe 27 is em ployed in the construction of the apparatus with reduced portions 28 thereof delivering the liquid fuel to the air conducting pipes 18, exteriorly of the furnace or stove. reduced portions 28' connect with the branches 29 of the liquid fuel supply pipe 27 and sight feed regulating valves 30 are interposed between the reduced portions 28 and the branches 29 of the liquid fuel supply pipe 27, so that feeding of the liquid fuel to the air conducting pipes 18 may be properly regulated at all times to assure a highly combustible mixture of the liquid fuel and the air. The complete mixture will be thoroughly vaporized as it passes through the burner nozzles 20 and previous to discharge of the mixture from the burner nozzles 20.-

In order that the passage of the air into either of the air conducting pipes 18 may be readily controlled, the shut off valves 31 are employedat the connection of the air: conducting pipes 16 with the branches 17 of'the ail-discharge pipe 16. The shutoff valves 31 are in the form of diseswhioh may,

The 1 be readily operated bythe valve stems 32 projecting through the branches 17 as shown in Figs. 1 to 3, inclusive. The branches 17 have outwardly turned portions 33 at right angles to the ends thereof and provided with discharge openings 34 which may be closed by the shut ofl valves 31, as shown in Fig. 1, when the air ispermitted to enter the air conducting pipes 18. When the shut off valves 31 are positioned against the ends of the air conducting pipes "18, however, to close the latter, the discharge openings 34 are uncovered and the air from the air dis charge pipe 16 is disehargedzto the surrounding atmosphere. Thisshould be clearly understood by referring to Fig. 1, which shows one of the shut off valves 31 in each of the positions stated. It is therefore evident that either one or both of the burner nozzles 20' may be-employed, as desired, by proper regulation of the shut off valves 31 and the sight feed controlling valves 30.

' Located in the lower portion of the liquid fuel supply pipe 27 is a cut. off. valve ,35 having an operating rod 36 extended from the head of the cut off valve 35. A'w'eight 7 is 'adjustably mounted on the operating rod 36 so as to cause actuation of the operatand automatic closing of the cut 1 35, whenever the operating rod ing rod 36 off valve 36 is released from the horizontal ppsition shown in the drawings. The free end of the operating rod 36 normally supported on the short extended end 38 of the lever 39. By referring to Figs. 1 and 2 it will beseen that the lever 39 is in the form of a bar having its short upper end 38 mounted on Hit) the pivot pin40 carried'in the upstanding supporting bracket 41, which latter is mounted on't-he bifurcated portion of the air supply pipe 16. The lever 39 is then extended at an angle downwardly and toward the fan casing 11. .The angularly bent ower end 42 of the lever 39 is normally ongaged beneath the catch member 43 carried on the horizontal valve rod 44. The horizontal valve rod 44 extends through ,the upper portion of the-air supply pipe 16 at a pointvnear the fan casing lland is ,rotatably mounted in a bracket arm 45 located side of the fan easing 11 and air supply pipe 16, as shown clearly in Fig. 1. A transversely curved and longitudinally tapering plate valve 46, in the form of a conventional scoop, is carried on' the valve rod 44 and when in raised or closed position within the air supply pipe 16 covers the air escape opening 47 in the upper side of the air supply 16. The lever 39 and the valve operating rod 36 are in set position, 'as shown in the drawings, when supply pipe 1 6 'from the lfian casing 11, to

at one the valve 46-is closed. This valve 46 is retained in .01 d\position by the force of the air passi ough 'the air the branches 17. 15. rhe awa-r, lpr v ripe glfi- Y \vit-hin'the air supply pipe 16, uncovering permitting the'walve 46 to swing -18. Should operation of the-blower fan 10 be discontinued from any cause whatsoever, the pressure of air on the under or concave side of the valve 46 would decrease, thereby downwardly on its pivot pin 44 to open position the air escape opening 47 and permitting the air to pass out of the air supply pipe 16 to the surrounding atmosphere,- by ,way of the a'irescape opening 47. This downward swinging movement of the valve 46 is caused by the atmospheric pressure on the outer or upper side thereof overcoming the decreased pressure on the under or concave'side of the valve -16 and the movement of the valve 46 results in withdrawing of the latch member 43 from the angularly extended lower end operating thereby discontinulng thetlow of liquid fuel -12 of the lever 39 and releasing of the latter. As-soon as the lever 39 is released, the weight 3? willcause operation of'the lever-.39 and downward swinging movement of the valve rod 36 to close the cut off valve 35,

through the liquid .fuel supply pipe 27 to the air conductin-g pipes 18. This result is automatic discontinuance of operation 0 the complete apparatus. owing to complete cutting off of the supplies of air and liquid fuel. This automatic cutting off of the supplies of air and liquidqfnel is desirable, as-

something may happen to the blower fan 10 even though the remainder of the electrically controlled parts of the apparatus may be operating properly and the circuit may be completethrough the blower; fan op erating mechanism. I

In Figs. 5 and (i a modified form ot'valve is disclosed which may be substituted for the valves 31 with a slight altet'ation in the construction and arrangement of the branches-17 of the air supply pipe 16 and the air conducting pipes 18. In'tliis moditions of the air tied form, the valves 48 are vlo'ated in the aircoinhu-ting pipes 17 and consist of pipe sections having their opposite ends cut on an angle and parallel to one another. rubber closure. members 49 being carried-on the opposite ends ofthe valves 48 so as to engage the angularly cut walls 50 of the main seccondueting pipes 18 when the valves 1-9 are -closed.in alignment with the main sections of the air conducting pipes so as to complete the same. as shown clearly in Figs. and'ti. The valves 48 are pivotally mounted between the supporting strips 51' extended lougitudinallyjof the air conducting pipes 18 and having their opposite ends secured thereto by rivets 52 or other suitable means. Pivot members 53 extend through the central portions of the strips 51 and through the central portions of the valves 48, sothat thelatter may be readihv mo ved to closed or open position, as

desired. \Vhen moved to open position, the valves 48 extend at an angle to the main sections of the air conducting pipes 18 and the opposite ends of the valves 48 as Well as the ends of the main sections of the air conducting pipes 18 (between which the valves 48 are positioned) are open to the atmosphere, thereby permitting escape of the air supplied-to the air conducting pipes 18 and preventing the usual feeding of the air under pressure to the burner nozzles 20 of the apparatus. The open position of the valve 48 shown in Fig. 5 is indicated by dotted lines and this may be readily understood by referring to.this view. From'ltigs. 1 and 2 it will be seen that a, -asing is provided for enclosing the blower fan 10. the lower fan casing 11. the motor 12 and a portion of the branches 17, as well as the main part of the air discharge pipe 16. This casing includes a bottom member 54 resting on the stand 55 and having an insulating bottom plate 56 on its up per face, composed of asbestos or other suit able material. The front or forward plate 57 of the casing has its lower edge 58- turned and secured upon the bottom plate 54,. as shown clearly in the drawings. A lining or inner plate 59 of asbestos or the like is carried on the inner face of the front orforward plate 57 and suitable openings are provided in the plates 57 and 59 to accommodate the branches 17 of the air discharge pipe 16 and the upstanding supporting bracket 41. This may alsobe readily understood by referring to the drawings. The top'plate 60, rear plate 61 and side plates 62 are preferably formed together so that they may be readily mounted on the bottom plate 54 and the front or forward plate 57 or removed therefrom, as desired. It is also to be-understood that suitable lining plates 63, G4 and 65 are provided for the top plate 60. the rear plate 61 and the side pla tcs 62, respectively.- Registering openiugs G6 are provided in one of the side plates (30 and its lining plate 65,- opposite the open side of the blower fancasing 11- and a turned pipe 67 is employed for ob ta'ining air from the exterior of the building in which the apparatus is located. The turned end of the pipe 67 has an annular outstanding flange '68 with an insulating washer (it) securedyto the face thereof for engagement with the outer face of theside plateti"). around the openingtiti thereof. It is, therefore, evident that the efficiency of T the apparatus is considerably increased by providing the casing just describedand l b taining t-he'air for the blower fan 10 from the exterior of the building instead of simply depending upon gathering. air fronr immediately around theblowertan casing 11 for operation of the apparatus. The un- Y limited supply of fuel and "freslrair for use gree of efiiciencyand proper and thorough.

as part. of the fuel assures the highest decombustion of the. mixture of air and gas or Va orized oil; y I

x t is believed the completed construction and operation of the apparatus may now be apparent'from the foregoing paragraphs taken in connection with the accompanying the fuel in vaporized form to the burner nozzles 20 with the mixture of liquid fuel and air properly proportioned. and vaporized to assure ready combustion of the mixture as it is discharged from the burner nozzles 20. One or more .of the burner nozzles 2O may be employed, by proper manipulation of the valves and 31. Continued operation of the complete apparatus is assured until release of the valve 46 when operation of theeblower fan 10 is discontinued either purposely or accidentally and the supplies of air and liquid fuel thereby automatically out off. It is also apparent that when the apparatus in operation, the contents of e water chamber 21 will be constantly heated and the burner nozzles 20 will be, in i turn, kept to the proper temperature to assure thorough vaporizing of the] fuel as thefuel mixture asses through the burner nozzles 20. Burt ermore, the complete apparatus may be employed-in connection with various types of furnaces, stoves and the like. When the modified form of valves 48 is substituted for the valves 31., the valves 48 may be operated in the same manner as described in connection with the valves 31.

The burner nozzles 20 may be closed by removable plugs 54 conforming to the curved discharge ends of the burner nozzles 20 and having heads 55 resting on the upper face of the water chamber 21 as shown in Fig. 2 of the drawings. This may be desirable when discontinuing operation of the oil burning apparatus and permitting the water chamber 21 to serve as a grate for supportmg coal or other fuel employed in the furnaco or stove.

. \Vhile the preferred embodiment of the invention has been disclosed, it is to be understood that minor changes in the details of construction, combination and arrangement of co-operating elements may be resorted to within the scope of what is claimed without departing from the spirit of the invention.

What I claim as new is:

1. In an oil burning apparatus, a blower casing, a blower 'therein a forked air disair through said air conducting chamber mounted in an enclosure; burner nozzles extended through said chamber and opening on one fa'cethereof; heat deflectin and retaining members .mounted on said chamber opposite said burner nozzles; heat retaining members supporting said heat do fleeting and retaining members; liquid supply and discharge pipes connected with said chamber; air conducting pipes connected with said burner nozzles; mea-nsfor forcing r r means for closing said air independently and ermittlng escape of the air to the surroun ing atmosphere; means for feeding liquid fuel to the said air conducting pipes at an appropriate point with respect to said enclosures; means for regu lating the feeding of the liquid fuel to said air conducting pipes; and an air supply pipe connected with 'said air conducting pipes and having discharge valve openings adjacent the air conducting pipes; the

means .for closing the air conducting pipes.

comprising valves which are adapted when in open position to cover the discharge valve openings of the air supply pipe and permit free passage of. the air into said air con ducting pipes; the last mentioned valves serving when in closed position to cover the ends of the air conducting pipes and permit escape of the air from the air supply pipe to the surrounding atmosphere by way of said discharge valve openin s. I

3. An oil burning apparatus including, a. closed liquid chamber mounted in an enclosure; burner nozzles extended through said closed liquid chamber; heat retaining members mounted on said closed liquid chamber with certain of said members opposite the discharge end of said burner nozzlcs; supply and discharge pipes coin ncc'l'ed with said closed liquid chamber; air conducting pipes econiu'cting said burner nozzles; an air supply pipe having extended portions connecting with said air conductlng pipes; means for controlling passage of air into said air conducting .pipcs independently; means for forcing air into the air supply piper means for feeding the liquid fuel to said airv con-ducting pipes; means for regulating the feed for the liquidto said air conducting pipes; the air.

supply pipe having discharge valye openings adjacent the 111. conducti means forclosmgthe a r coir n'ip'es'; the v comprising valves which are adapted when 111 open posit-011 to ('(JYUL' the dhuhzu'gc valve! o'pcnmgs of the m1 supply rape and permit free passage of the an' mic) said an" conducting pipes; the lust mentioned. valves servmg when 111 closed POSHAOH to cover she ends of the un' conductmg PIPCS and perzmt "Lure,

FRED

(M H14; 3' supply pipe :ztmcspherc ky \'.'u1y of 

